package com.lqq.eduorder.service.impl;

import com.alibaba.fastjson.JSONObject;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.github.wxpay.sdk.WXPayUtil;
import com.lqq.eduorder.entity.Order;
import com.lqq.eduorder.entity.PayLog;
import com.lqq.eduorder.mapper.PayLogMapper;
import com.lqq.eduorder.service.OrderService;
import com.lqq.eduorder.service.PayLogService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;

import com.lqq.eduorder.utils.HttpClient;
import com.lqq.servicebase.exceptionHandler.GuliException;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;


import java.math.BigDecimal;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;

/**
 * <p>
 * 支付日志表 服务实现类
 * </p>
 *
 * @author 677
 * @since 2021-07-12
 */
@Service
public class PayLogServiceImpl extends ServiceImpl<PayLogMapper, PayLog> implements PayLogService {

    @Autowired
    private OrderService orderService;

    //生成微信二维码，参数是订单号
    @Override
    public Map createNative(String orderNo) {
        try {
        //1.根据订单号查询订单信息
        QueryWrapper<Order> wrapper = new QueryWrapper<>();
        wrapper.eq("order_no", orderNo);
        Order order = orderService.getOne(wrapper);

        //2.使用map设置生成二维码需要的参数
        Map m = new HashMap();
        m.put("appid", "wx74862e0dfcf69954");
        m.put("mch_id", "1558950191");
        m.put("nonce_str", WXPayUtil.generateNonceStr());
        m.put("body", order.getCourseTitle());
        m.put("out_trade_no", orderNo);
        m.put("total_fee", order.getTotalFee().multiply(new BigDecimal("100")).longValue()+"");
        m.put("spbill_create_ip", "127.0.0.1");
        m.put("notify_url", "http://guli.shop/api/order/weixinPay/weixinNotify\n");
        m.put("trade_type", "NATIVE");

        //3.发送httpclient请求，传递传输xml格式，微信支付提供固定的地址
        HttpClient client = new HttpClient("https://api.mch.weixin.qq.com/pay/unifiedorder");
        //设置xml格式的参数
        client.setXmlParam(WXPayUtil.generateSignedXml(m, "T6m9iK73b0kn9g5v426MKfHQH7X8rKwb"));
        client.setHttps(true);
        //执行post请求发送
        client.post();

        //4.得到发送请求返回结果 返回内容，是使用xml格式的，故我们需要转换
        String xml = client.getContent();
        //把xml格式转换成map集合，把map集合返回
        Map<String, String> resultMap = WXPayUtil.xmlToMap(xml);

        //最终返回数据的封装
        Map map = new HashMap();
        map.put("out_trade_no", orderNo);
        map.put("course_id", order.getCourseId());
        map.put("total_fee", order.getTotalFee());
        map.put("result_code", resultMap.get("result_code"));
        map.put("code_url", resultMap.get("code_url"));

        return map;
        } catch (Exception e) {
           throw new GuliException(20001, "生成二维码失败！");
        }
    }

    //根据订单号查询订单支付状态
    @Override
    public Map<String, String> queryPayStatus(String orderNo) {
        try {
            //1.封装参数
            Map m = new HashMap<>();
            m.put("appid", "wx74862e0dfcf69954");
            m.put("mch_id", "1558950191");
            m.put("out_trade_no", orderNo);
            m.put("nonce_str", WXPayUtil.generateNonceStr());

            //2.发送HttpClient请求
            HttpClient client = new HttpClient("https://api.mch.weixin.qq.com/pay/orderquery");
            client.setXmlParam(WXPayUtil.generateSignedXml(m, "T6m9iK73b0kn9g5v426MKfHQH7X8rKwb"));
            client.setHttps(true);
            client.post();

            //3.得到请求返回的内容
            String xml =client.getContent();
            Map<String, String> resultMap = WXPayUtil.xmlToMap(xml);

            //4.返回结果
            return resultMap;
        }catch (Exception e) {
            return null;
        }
    }

    //向支付日志表添加记录，更新订单表的状态
    @Override
    public void updateOrderStatus(Map<String, String> map) {
        //从map获取订单状态
        String orderNo = map.get("out_trade_no");
        QueryWrapper<Order> wrapper = new QueryWrapper<>();
        wrapper.eq("order_no", orderNo);
        Order order = orderService.getOne(wrapper);

        if (order.getStatus().intValue() == 1) {//1:支付
            return;
        }
        //不为1修改订单状态
        order.setStatus(1);
        orderService.updateById(order);

        //添加支付日志表
        PayLog payLog = new PayLog();
        payLog.setOrderNo(order.getOrderNo());//支付订单号
        payLog.setPayTime(new Date());
        payLog.setTotalFee(order.getTotalFee());//总金额(分)
        payLog.setTradeState(map.get("trade_state"));//支付状态
        payLog.setTransactionId(map.get("transaction_id"));
        payLog.setAttr(JSONObject.toJSONString(map));
        //插入支付日志表
        baseMapper.insert(payLog);
    }
}
